New Pattern Strong Black Paper ConeWide Heavy Foam Surround Rigid Powder Coated Stamped Steel Basket Bumped & Vented Pole Piece With Rubber Gasket & Rubber Magnet Boot 2-Inch 4 Layer Kapton Voice Coil 4 Ohm Impedance 500 Watts RMS/1000 Watts Peak Overall Diameter: 12.52-Inch SPL @ 1W/1M: 86.1dB Magnet Weight: 90 oz. Mounting Depth: 5.16-Inch